> decode | preview | download <
// Convert Base64 strings back to images with instant preview and download
Decoded image will appear here
Local Processing
100% client-side Base64 decoding. Your data never leaves your browser.
Instant Preview
See decoded images immediately with format and size information.
No Limits
Decode any size Base64 string. No registration or API keys required.
// ABOUT BASE64 TO IMAGE CONVERSION
Supported Image Formats
- >PNG - Lossless compression with transparency
- >JPEG/JPG - Optimal for photos and complex images
- >GIF - Animated images and simple graphics
- >WebP - Modern format with superior compression
- >SVG - Scalable vector graphics
- >BMP - Uncompressed bitmap images
- >ICO - Windows icon format
Common Use Cases
- >HTML email embedded images
- >Data URI implementation in CSS/HTML
- >API response image processing
- >Database BLOB to image conversion
- >Web app offline image storage
- >Mobile app image caching
- >JSON payload image transmission
How Base64 to Image Conversion Works
Base64 decoding converts text-encoded binary data back to its original image format. Each group of 4 Base64 characters represents 3 bytes of binary data, achieving 75% efficiency. Our converter automatically detects image formats and creates downloadable files.
Example Data URI Format:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg==
Performance & Browser Compatibility
- >Client-side processing for maximum security
- >Supports files up to browser memory limits
- >Works in all modern browsers (Chrome, Firefox, Safari, Edge)
- >No server uploads or data transmission required
- >Instant conversion with real-time preview
- >Mobile-friendly responsive interface
// HOW TO USE BASE64 TO IMAGE CONVERTER
Step 1: Paste
Paste your Base64 string or data URI into the input field
Step 2: Preview
Click decode to see instant image preview with details
Step 3: Analyze
Review format, dimensions, and file size information
Step 4: Download
Download the decoded image in its original format
// CODE EXAMPLES FOR DEVELOPERS
JavaScript (Browser)
// Decode Base64 to image
const base64String = 'data:image/png;base64,iVBORw0...';
const img = new Image();
img.src = base64String;
document.body.appendChild(img);Simple browser-based Base64 to image conversion using the Image constructor.
JavaScript (Node.js)
const fs = require('fs');
const base64Data = 'iVBORw0KGgoAAAANSUhEUg...';
const buffer = Buffer.from(base64Data, 'base64');
fs.writeFileSync('decoded-image.png', buffer);Server-side Base64 decoding to file using Node.js Buffer and filesystem.
Python
import base64
from io import BytesIO
from PIL import Image
base64_string = 'iVBORw0KGgoAAAANSUhEUg...'
image_data = base64.b64decode(base64_string)
image = Image.open(BytesIO(image_data))
image.save('decoded-image.png')Python implementation using base64 library and PIL for image processing.
PHP
<?php
$base64String = 'iVBORw0KGgoAAAANSUhEUg...';
$imageData = base64_decode($base64String);
file_put_contents('decoded-image.png', $imageData);
echo 'Image decoded and saved!';
?>PHP Base64 decoding using built-in base64_decode() function.
// FREQUENTLY ASKED QUESTIONS
Q: What is Base64 image decoding?
A: Base64 image decoding converts Base64 encoded strings back to their original image format (PNG, JPEG, GIF, etc.). Essential for viewing embedded images from data URIs, APIs, or databases.
Q: How secure is Base64 to image conversion?
A: 100% secure local processing. All Base64 decoding happens in your browser. Zero server uploads. Your images never leave your device.
Q: What image formats are supported?
A: Supports all common image formats: PNG, JPEG, GIF, WebP, SVG, BMP, ICO. Auto-detects format from Base64 data and MIME type headers.
Q: Can I decode data URI format?
A: Yes. Supports both data URI format (data:image/png;base64,...) and raw Base64 strings. Auto-detection included for both formats.
Q: What's the maximum file size for conversion?
A: No hard limits imposed by our tool. Limited only by your browser's memory capacity. Most browsers handle images up to 100MB+ without issues.
Q: Why use Base64 to image conversion?
A: Essential for HTML emails, data URIs in CSS/HTML, API image processing, database BLOB conversion, and offline web app development.
Q: Can I batch convert multiple Base64 strings?
A: Currently supports single image conversion. For batch processing, paste and convert each Base64 string individually.
Q: Does the tool work offline?
A: Yes, once loaded. All processing is client-side JavaScript. No internet connection required for conversion after initial page load.
Q: Are there any browser compatibility issues?
A: Works in all modern browsers (Chrome 4+, Firefox 3.6+, Safari 4+, Edge). IE8+ supported with some limitations on large files.
Q: How do I handle corrupted Base64 data?
A: Invalid Base64 strings will show an error message. Ensure proper encoding, check for missing characters, and verify data integrity.
Q: Can I convert Base64 to different image formats?
A: The tool preserves the original format embedded in the Base64 data. For format conversion, use the decoded image with an image editor.
Q: Is there an API available for developers?
A: Currently web interface only. For programmatic access, use the provided code examples in JavaScript, Python, PHP, or other languages.